Avalanche forecast

Jasper

Dec 8 – 9, 2011Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Thu
Fri
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
2 · Moderate
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Highlights

Although the weather has cooled and is stable, the weak basal facets can still be easily triggered. Stay away from big steep slopes and travel cautiously.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    This layer continues to settle and is becoming less of a concern. Steep cross loaded or lee slopes are likely trigger zones. Alpine snowpack depth remains highly variable. At treeline and below, travel is good and the snowpack is supportive.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    2–3
    These slabs are sitting over a weak basal facet layer. Most large avalanches that have been observed recently have been on this layer. It can be most easily triggered from shallow areas on the edge of fatter slopes.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable on Thursday

Regions covered